Configuring The Default Mdt - Juniper JUNOSE SOFTWARE FOR E SERIES 11.3.X - MULTICAST ROUTING CONFIGURATION GUIDE 2010-10-07 Configuration Manual

JunosE 11.3.x Multicast Routing Configuration Guide
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For a receiver on the data MDT, P-PIM-SM joins the data MDT by propagating join state
into the core. The P-Group for that join is extracted from the MDT Join TLV. If SSM is not
activated or the P-Group is not in the SSM group range, P-PIM-SM performs a <*, G> join
towards the RP for that P-Group.
If SSM is activated and the P-Group is in the SSM group range, P-PIM-SM performs an
<S, G> join towards the P-Source, where the P-Source address is the SA of the MDT Join
TLV.

Configuring the Default MDT

To configure the default MDT:
On the parent virtual-router, configure an IP interface over the MDT interface, and
1.
make it a PIM interface.
host1(config)#virtual-router pe1
host1:pe1(config)#ip multicast-routing
host1:pe1(config)#interface loopback 0
host1:pe1(config-if)#ip address 1.1.1.1 255.255.255.255
host1:pe1(config-if)#ip pim sparse-mode
host1:pe1(config-if)#exit
Configure the VRF.
2.
host1(config)#virtual-router pe1
host1:pe1(config)#ip vrf pe13
host1:pe1(config-vrf)#rd 100:13
host1:pe1(config-vrf)#route-target both 100:3
host1:pe1(config-vrf)#exit
To enable MDT, configure a GRE multicast tunnel interface (MTI) for VPN1.
3.
host1:pe1(config)#virtual-router default
host1:(config)#interface tunnel gre:MTI-11 transport-virtual-router pe1
host1:(config-if)#tunnel source 1.1.1.1
host1:(config-if)#tunnel destination 233.3.1.1
host1:(config-if)#tunnel mdt
host1:(config-if)#exit
The tunnel mdt command enables the IP tunnel component to create an MDT
interface.
For the VRF, configure an IP interface on the MTI interface.
4.
host1(config)#virtual-router pe1
host1:pe1(config)#virtual-router pe1:pe13
host1:pe1:pe13(config)#ip multicast-routing
host1:pe1:pe13(config)#interface loopback 0
host1:pe1:pe13(config-if)#ip address 1.1.1.1 255.255.255.255
host1:pe1:pe13(config-if)#exit
NOTE: The IP address that you configure for the VRF must be identical to
the IP address of the loopback interface in the parent virtual router.
Configure the MTI interface in the VRF.
5.
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